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Alinaghipour Taklimi, Fatemeh(Faculty of Graduate Studies and Research, University of Regina, 2013-08)

For any simple graph G on n vertices, the (positive semi-de nite) minimum rank
of G is de ned to be the smallest possible rank among all (positive semi-de nite) real
symmetric n × n matrices whose entry in position (i; ...

Anas, Mohamed Usoof Mohamed(Faculty of Graduate Studies and Research, University of Regina, 2012-05)

It is critical to identify and use appropriate ecological indicators to detect, monitor and assess the impacts of environmental stressors on natural systems in order to effectively legislate, protect and restore ecosystems. ...